Lesser Guardian Seal

This spell allows the caster to magically seal a door, window, box, and so on against one type of creature (ghouls, bears, elves, etc.). Affected creatures cannot pass the seal, nor are their physical or magical abilities, immunities, or resistances effective against it or the material of the closure. A creature of the affected type whose level or Hit Dice exceeds the casters by 4 or more can shatter the seal.

Other creatures can try to physically destroy the sealed door, box lid, and so on. The warding magic inflicts one-quarter damage (round down) caused to the closure back upon the creature trying to break through. A successful dispel magic spell removes the seal.

The seal lasts until the portal is opened, unless made permanent by means of the permanency spell.